﻿#include <stdio.h>
#include <locale.h>
#include <string.h>
#include <wchar.h>
#include <iostream>
int main()
{
    wchar_t p[] =  L"中华人民共和国a";
    setlocale(LC_ALL, "");
    wprintf(L"%d\n", wcslen(p));
    std::wcout << p << std::endl;
}
